This horrifying example of Mother Nature's sick, twisted mind sits under the sand waiting to spring up and trap unsuspecting fish into its hellish jaws, sucking them into their pit of despair.

They have powerful claws where their head should be that retract into their body, appearing to mimic Mr Burns' "excellent" twiddling finger movement when they're tucked inside.

Sand strikers are basically massive ocean millipedes which grow anywhere between the size of a human arm to TWICE THE LENGTH OF A MAN.

The human centipede may be an obscure concept that (for the love of God) only exists in the world of horror movies, but an underwater double millipede man who pops up from the ground is an actual living creature.

These worms/cylinders of misery have no brains and no eyes; but will instructively strike when one of their antennae senses life nearby.